Railway brake



J. P. CARLSUN.

RAILWAY BRAKE.

AYPPLICATIQN FILED JULY 19,1921'.

s HEETS-SHEET l.

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Patented Aug. l, 1922.

J. P. CARLSON.

RAILWAY BRAKE.

APPLICATION FILED IuL'Y I9, 1921.

Patented Aug. L 1925...

2 SHEETS-SHEET Z.

JOHN IP'. CARLSDN, 0F THE DALLES, OREGON.

RAILVJAY BRAKE.

Lisanne.

Specification or" Letters Patent. Pgpemgd Aug. l, 1.922.

Application ined July r9, 192i. serial no'.l assess.

To all wlmi/1e t may concern.'

Be it known that l, loi-MLP. Crimson, citizen et the United States, residineat The` Dalles, in the countyol W'asco and State of l@regon, have invented certain new and useful Improvements in Railway Brakes, of which the following isa specification.,

,Cllhe invention relates toimprovements in brake mechanisms for railway cars.

lt is an. object ofthe,y invention 4to provideA a railwayfoar` brake wherein the pressure applied tovthe car wheels by .the braking mechanism may be 'variedI to prevent injury tothe. car wheel,` ,but at the same :time apply ample` braking power `to isaid wheels.

as is well knowncarX wheels when new have a coarsesurtace andwhen the. conventional type of,brakingmechanism is employed .whenthe brakesare operated, the

mannnumbraking .power isappli'ed to the wheels, which selwestmcause said wheels` tion of brake operating, rods on the brake operating lever. for .varying thethrow .or

movement of said rodswhen the lever is operated :'romthe compressed air cylinder.

In. thev accompanying drawings, I v,have shown one embodiment of the invention, .but the construction maybe materially changed or` altered. withoutdeparting from the spirit thereof. f A .i i

ln the drawings, Figure l .represents ,ya view of the underside of a car and Figures 2, 3 and 4 aredetail views, r

Referring now more particularly to the drawings :wherein `like reference chanacters indicate corresponding parts, the numeral l designates brake operating member, which is preferably connected with a piston operating in the compressed air cylinder 2, to which there. leads the `usual compressed air line controlled by the operator of the car.

This' member l at its outer end is connectedto a brake operating lever 3, rthrough the medium of the yoke a, said `yoke having fa plurality of `apertures 5 therein` through.

which the fastening pinel passes, the objectk of these apertures being toadjust the position of the brake, operating lever 3 as the occasion may require, n

The brake operating lever 3 extendslaterally beneath the vehicle, and slidably associated therewith are the brake operating arms 7 undS. These arms haveopen pory tions receiving the brake leyer,ya`nd are shii'ted in consonance' with a movement im.- parted to said lever. The arms T and 8` at their rear ends slidablyengage links9 and l0 connected` with suitablevsprings for the. purpose of normally maintaining the brakes in an` inoperative position, the arms in turn being pivotally yconnected with brake operatf mg devices l2 extending'to `the brakes in a manner similar to the constructions now employed. i ,M

Extendingtransversely ofthe .car body is a manually shiftable operating arm. 13, having an operating handlel ,accessible from the `side oi' the car andv a plurality of `aperturesl therein through whiclia retaining element 1,7 passes. T his brake operating arm` passes through akeeperfso` that when @the retaining elements 17 are passedthrough the selected aperture 16 said armv 1s, maintained in its adjusted position@` At the outeryend this arm is attached to the .brake arm Tfor,

the purpose ofshiiitingsaid, rod. otter the` brake lever .3 actuated ,'byfthe operating yrod l connected witha manual operating device or the iuid pressure motor. The said rod 13 is likewise provided with a plurality apertures 18 near thejouter. end thereof, and pivotally connected with said rod is anfout.- standing link 19, `having one end thereoi' ,pivotally connected with the brake lever. 1S

by the,bolt.20, while the .otherend thereof is pivotally connected yto a secondflink-2l by the holt 22, whichlinkis in. turn connectedwith,thelbrakeoperating arm 1S. It will therefore be seen that as thel lever 13. is

moved loutwardly it correspondingly,moves the `arm 7 in consonance withits movement, at the same time swinging the link 19 pivotally connected withthe `lever 3, this causing the outer end of the link 'tofmove `shifting the link 2l` and thereby moving thehun@ over the lever. :The outer end-of `therodl is provided with a plurality of apertures y herein shown, andl the interconnected links the' arm 8, causing said arms to be moved during the movement of the lever, which arms in turn actuate the brakes. Assuming that newV wheels 'have been `applied to' the car, or that` the car is very lightly loaded?,

' then'the operator grasps the rod 13 and moves vthe same to its most extended outward position, placing the locking pin 17 in the appropriate aperture 16 to hold the Arod in Vthis position. This movement oi the rod'y causes the brake arms 7 and Sthrough lthe medium of the connected link members to' be moved toward the pivot or axis 6 constituting the connection between the main operating member l yand the lever 3.4 llhen the -operating member 1 is then moved by manual or power'means, then the brake arms 7 and 8 being coniparativelyclose toits pivotal i point areonly moved a short distance applying a limited amount of braking` power to the carwheels, but of-coursesumcient to stop the'movement ofthe car. "When a greater or maximinn` braking power is needed, then the rod 13 isadjusted or shifted inwardly, which causes the. arms y7 and 8 to be moved away' from the pivot point or axis 6 of the lever 23 Vso that 'said' arms when the lever is actuated are given an increased throw or movement,

' `correspondingly[imparting greater braking power to the car brakes. The power applied to the brakes can range 'from a maximum to a minimum braking power with a rmanually controlled means for regulating the applica'- tion of the brakes to the train wheels.

In the accompanying 'drawings l have sho-wn a preferredembodiment of myinventhis' invention.

. l claim is:

tion, but of coursemany changes in the construction and arrangement of the parts can be made without departing from the spirit of `Having thus described the inventiomwhat V1. In a railway brake, the i combination with a braking lever, ofa pair of brake operating arms connected therewith, mechanism tor actuating brakes connected Withr-aid operating arms.

arms, means for operatingthe brake lever, and manually controlling Vmeans tor regulating fthe length otmovement `of ysaid brake Qigln a railwaybrake, the combination with a braking lever, of a4 pair' of brake operating arms connected therewith, mechanism for actuating brakes connected with said arms, means for operatingy the brake lever, and manually controlling means for regulating the length oi'- movement of said `brake operating arms, said regulating means4 comprising a shiftable element adapted to move said lbrake actuating arms relative to n the brake `operating lever.

' 3. Arailway car brake, comprisingabraking lever, means pivot-ally connected therewith i'or operating said lever, brake operating armsadapted to be actuated by said lever, and means connecting said brake 0perating arms with railway brakes, and means e for adjusting said' brake voperating arms on seid brake lever including a shii'table vrod havingconnections with each offsaid arms and adapted when moved to shift said'arms equal distances inthe same direction on said lever, whereby' therbrake operating arms 'are moved v,determined variable distances upon the actuation of the brake lever.

4. ln a railway brake, the combination `with a brake lever, means foroperating the same pivotally connected with the lever in-vv termediate its ends, brake operating arms adapted to be shifted by said lever, and

meansl for adjusting said brakeoperating armson'said lever tovary thethrow of said arms upon the actuation of the lever.

with a brake'lever, means for'operating the same pivotally connected with the lever in- 5. In arailway brake, the `combination termediate its ends, brake operatingarms adapted to be vshifted bysaid lever, and means for adjustingsaid brake-operating arms on said lever to vary the throw of said arms upon the actuation of the lever, said means comprisingv al manually operated member.` i V I 6111i a railway brake, the combination with a vbrake lever, meansl for operating the 'same pivotally 'connected with the "lever intermediate its ends, brake operating arms adapted to be shifted by l'said lever, and means for adjusting 2 said; brake operating rarmson said lever `to vary 'the throw of 'said arms upon the actuation of the lever, said means comprising a manually operatedk member connected with link sections, one of said link sections being lpivoted to the lever and the other toa brake arm. 7. In a railway brake, the combination with an operating lever, actuating 'means pivotally 4connected with said lever intermediate its ends, oppositely disposed brake arms slidably associated with the'leverand spaced from one another, said arms being adapted to be actuated upon-almoveinent of f the lever toqapply tlierailway brakes, and manual means for varying the throw of said arms;

8. In a railway brake, the combination with an operating' lever, actuating .means i pivotallyreonnected with said lever intermeiso diate its ends, oppositely disposed brake arms slidably associated with the lever and spaced from one another, said arms being adapted to be actuated upon a movement of the lever to apply the railway brakes, and manual means `for varying the throw of said arms, said means Comprising a manually operable shifting rod connected with both of said arms for shifting said arms in conso* nance equal distances over said operating lever.

9. In a railway brake, the combination With an operating lever, actuating means pivotally connected with said lever intermediate its ends, oppositely disposed brake arms slidably associated with the lever and spaced `from one another, said arms being adapted to be actuated upon a movement of the lever to apply the railway brakes, and manual means for varying the throw of said arms7 said means comprising a manually operable shift-ing` rod Connected with both of said arms for shifting said arms in consonance equal distances over said operating y lever, said shifting rod being connected near one end to one of the arms and oonneot'ed to said other arm through the me-` JOHN P. CARLSON. 

